class_docstr: A Concept class, loosely based on SKOS
  (https://www.w3.org/TR/swbp-skos-core-guide/).
docstr: Convert a set of pairs into an adjacency linked list encoding of a graph.
docstr_tok: ["Convert","a","set","of","pairs","into","an","adjacency","linked","list","encoding","of","a","graph","."]
code: def _make_graph(self, s):
      """
      Convert a set of pairs into an adjacency linked list encoding of a graph.
      """
      g = {}
      for x, y in s:
          if x in g:
              g[x].append(y)
          else:
              g[x] = [y]
      return g
  
imports: import os
  import re
  import shelve
  import sys
  import nltk.data
label_desc: Use image node_id 5 for calling the Concept obj's underlying member method code with example usage: obj._make_graph(s) and returns: g